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HP DL585 G2 Not Booting.

Posted on 2013-12-22
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Last Modified: 2014-01-13
Hoping someone can assist me.

I have a HP DL585G2 server. Last night presumably due to some electrical cause the server has stopped working.

It is giving a repeating long beep during post. It shows the internal fault light on.

Initially when I opened the machine to my memory PPM4 light was on as was the whole of the adjacent memory bank lights. 8 memory socket lights representing the front left side. My initial thought was that maybe it was the PPM. I did not have a spare so I swapped it with PPM3.

Initially there was no change. However subsequent reboots are now showing orange alerts on the whole of memory bank adjacent to PPM3 (front left side). I tried reseating the memory as some of them definitely were not locked in properly. This did not fix it. I then removed all of the memory from bank 3. On reboot all of Memory bank 4 lights were on.

There is also a POST code 42 shown. This seems to indicate a memory issue.

I am able to log into ILO but I have not found any alerts. I am on my way to pick up a spare machine so should have some spare if necessary. But really not sure what to start with.

Thanks

Raoul
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Question by:Raoul Edmonds
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6 Comments
 
LVL 31

Expert Comment

by:Gareth Gudger
ID: 39735378
What happens if you remove all processors, PPMs and DIMMs EXCEPT processor 1, PPM 1 and the DIMMs for Proc 1?
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Author Comment

by:Raoul Edmonds
ID: 39735577
Thanks for your assistance.

I havn't tried that as yet. I think I will though.

I did swap out the complete CPU/RAM housing from another unit. This booted OK. I want to go through and rebuild with max RAM and best CPUs. However it would be good if I can identify the faulty component and end up with 2 working servers.

I think I will try your suggesttion now and minimise CPU/PPM and RAM.

Regards
Raoul
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Author Comment

by:Raoul Edmonds
ID: 39735644
OK so I reduced the system to 2 CPUs, 2 PPMs, and 4 sticks of Ram in the Banks 1A, 2A, 3B & 4B.

I did not go to 1 CPU and 1 PPM as there was a label that said something to the affect
"caution, CPU and PPM 1 & 2 must be populated at all times.

The system booted up and appears ok EXCEPT for the fact that on the System Dianotic lights shows Power Fault on CPU2. The system boots up to vSpehere and vsphere recognises both CPUs and the Ram. ILO also seems to show 2 CPUs and Ram with no issues. Is there more diagnostic information available than what I see in ILO?

Next step is to proceed to add CPUs/PPM/RAM. Although I will late a little while to see if anyone has any suggestions before doing so.

Thanks
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Author Comment

by:Raoul Edmonds
ID: 39735922
OK. So I step by step added the processors back and the ram.

When I added the last 4 sticks of ram to the 4 Ram array the system would not boot with original error. On the post display all of the Ram Bay lights for array 4 flashed orange continuously. 8 lights even though only 4 sticks inserted. I tried swapping the PPM again with no change.

I may at some stage try adding 2 sticks of ram or some ram from a different system but not tonight.

I also still have the Power Fault light for CPU2 on, on the internal Post display. ILO/ Vsphere do not indicate any issues and recognise all cores etc.

Thanks for your help. Any other advice would still be appreciated.
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LVL 31

Accepted Solution

by:
Gareth Gudger earned 1500 total points
ID: 39736335
Well it sounds like you definitely have some faulty RAM. Or worse yet, bad slots on a motherboard.
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Author Comment

by:Raoul Edmonds
ID: 39737147
Thanks diggasaur. The bad ram I don't mind to much. Hope it is not bad slots. All 8?

Also just wondering if you know, does it make any different to performance if there is not ram in the ram array adjacent to a particular processor. Ie is it better to have 4 sticks of ram in each of the four arrays rather than have 16 sticks in 2 arrays?

Thanks for your help.

Raoul
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